Cyrus Forbes

Provide context for runFunc which is cancelled during timeouts

2

Currently, when running `hystrix.Do` or `hystrix.Go`, there is no built in context cancellation during a timeout. For example, when making a dynamo query: ```golang err := hystrix.Do(HystrixCommand, func() error {...

extractError() will discard stack if root cause doesn't have a stack trace attached

1

Since `extractError()` only looks at the _root_ cause and discards other errors in the error stack (https://github.com/heroku/rollrus/blob/master/rollrus.go#L270-L275), if there are multiple wrapped errors and the root cause does not have...